twm became red

[Annalesa]

My twm suddenly turned into this when I startx just now, and I don't know why.

 

[wolffnx]

Hi, do you check the monitor cable?

 

[Annalesa]

Hi, do you check the monitor cable?

what's that?

 

[wolffnx]

what's that?

the cable that connect you monitor to you cpu? vga,dvi?

 

[Annalesa]

the cable that connect you monitor to you cpu? vga,dvi?

I don't know, it's my laptop thinkbook 14 g3 itl, eDP?

 

[wolffnx]

I don't know, it's my laptop thinkbook 14 g3 itl, eDP?

Maybe is the flex of the screen then,
try closing and open the screen without closing at %100.and see if the colorsof the screen change

 

[bda65]

Try another version of drm-kmod. I've seen something like that but green on my laptop with drm-latest-kmod.

 

[Kai Burghardt]

twm became red

It’s a feature. This is the enhanced FreeBSD flair, #AB2B28. Did you install (and not configure) some color management stuff? apropos color.​

Maybe is the flex of the screen then,
try closing and open the screen without closing at %100.and see if the colorsof the screen change

LVDS is digital. In the analog days poor connection of a pin resulted in a missing color. In the digital days I’d expect no image.​

Try another version of drm-kmod. I've seen something like that but green on my laptop with drm-latest-kmod.

Annalesa, this issue arises after startx(1)? Before that everything looks fine?​

 

[Annalesa]

It’s a feature. This is the enhanced FreeBSD flair, #AB2B28. Did you install (and not configure) some color management stuff? apropos color.

LVDS is digital. In the analog days poor connection of a pin resulted in a missing color. In the digital days I’d expect no image.

Annalesa, this issue arises after startx(1)? Before that everything looks fine?​

I installed lcms2
Yes, before starx, it's a black and white console

 

[hruodr]

It’s a feature.

Yes, twm shames itself.

 

[Zare]

LVDS is digital. In the analog days poor connection of a pin resulted in a missing color. In the digital days I’d expect no image.​

Agreed, but just to nitpick about terminology, it is not about digital or analog. It is about parallel vs serial transmission of data, where the latter specifically cuts down the amount of signals needed to establish the data link functionality.

You can cut some active lines on a LPT connected printer, it will still print but botched results. If you cut any active lines of a serial printer, it will just turn off. It's just nature of the type of communication link.

In PC displays, DE-9 and DE-15 video links work the same way - parallel pixel lines - cut one pixel line and you lose that part of color space, not the whole image. However DE-9s tend to output digital signals to digital TTL monitors and DE-15 outputs tend to be VGA analog.

DVI is the first digital serial mass video standard for PCs. So we went digital->analog->digital packet.

(just noting this because the first thing that rings in my head when reading "digital days" is the ancient stuff, not current )